Steam-turbine.



F. H. C. COPPUS.

STEAM TURBNE.

APPLICATION FILED Nov. II. 1912.

1,172,436, Patented Feb. 22, 1916.

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UNITED STATES PATENT oEEIoE.

FRANS H. C. COPPUS, OF WORCESTER, MASSACHUSETTS, ASSIGNOR T0 COPPUS ENGI- NEERING AND EQUIPMENT COMPANY,

PORATION 0F MASSACHUSETTS.

OF WORCESTER, MASSACHUSETTS, A COR-v STEAM-TUEBINE.

Specification. of Letters Patent.

Patented Feb. 22, 191 6.

Application filed November 11, 1912-. Serial No. 730,561.

To all whom t may concern.'

Be it known that I, FRANS H. C. Corpus, a citizen of the Unitedl States, residing at ivorcester, in the count-y of Worcester and Commonwealth of Massachusetts, have invented a new and useful Improvement in Steam-Turbines, of which the following 1s a. specification, accompanied by drawlngs forming a part oflthe same.

One object of my invention 1s to provlde means for controlling the admission of steam to the buckets of the turbine wheel without interfering with the cleaning or removal of the steam nozzles through which steam is conducted to the buckets. The mechanism by which this object, among others, is accomplished is shown in the ac' companying drawings, in whichturbine. Fig. 2 is a central sectional view of the same. Fig. 3 is a vertical sectional view of the steam chamber on the plane of thebroken line 3, Fig.4 2.@ Fig. 4 is a horizontal sectional View of the steam chamber on the plane of the broken line 4 4,` Fig. 3, and Fig. 5 is a horizontal sectional view showing the steam nozzles, the section being shown on the plane of the broken line 55, Fig. 3.

Similar reference characters refer to similar parts in the different figures.

Referring to the drawings, 1 denotes. ay revolving turbine wheel carrying upon 1ts` periphery buckets 2, said wheel and buckets being of any known and suitable form of construction. Rotary motionl is imparted to the wheel 1 by means of steam under pressure, which is admitted from a source of steam supply through a pipe 3 into a steam chamber 4 conveniently formed in a casing 5 by which the turbine wheel is inclosed. The steam chamber 4 communii Cates at its rear side with steam pockets 6,

7 and 8, the communication between the steam chamber 4 and the pocket 7 being permanently open, while those between the steam chamber 4 and the pockets 6 and 8 are closed by valves 9 and 10 carried upon valve stems 11 which are provided with hand wheels 12 to enable the valves to be opened and closed by the operator.

Leading from the steam pockets 6, 7 and S and opening into the chamber inclosed by the casing 5 are nozzles 13, 14 and 15, ar-

the outside of the casing aud the several steam pockets 6, 7 and 8, through which the nozzlesV are admitted, are closed by screw threaded plugs 19. The steam nozy zles are capable of being withdrawn by re- Figure 1 is a front View of my improved` moving the plugs 19 and rings18. By closing the valves 9'and 10 the nozzles 13 and 15 may be removed Without interrupting the operation of the nachine.

From the lower` edge `of the casing 5 an elbow 20 is formed into which is inserted a screw threaded pipe 21.- The opposite end of the pipe 21 is inserted, and capable of sliding in, a cylindrical passage 22 formed in a casing 2 3 which constitutes a lcover or hood for a revolving fan blower 24. The passage 22 communicates through a discharge opening 26 with the interior of the hood 23 contiguous to the fan blower 24. The discharge opening 26 of the passage 22 is directed into a chamber 27 at an ob- .lique angle to the axis of the fan blower, so that the'movement of air through the chamber 27 by the fan blower 24 in the direction of the arrow a will induce acurrent through the passage 22 in the direction of the arrow b, thereby diminishing the steam pressure in the casing 5 and causing the exhaust steam of the apparatus to become thoroughly intermingled with the air forced by the blower 24 through the chamber'27. The short pipe 21 screwed into the casing 5 is. capable of a sliding movement within the passage 22 to provide for its contraction and expansion, The casing 5 and hood 23 are supported in proper relation to each other not only by the pipe 21 but by the bolts 2S and i claim,

1. 1n a machine of the class described, a turbine wheel, a casing inclosing said wheel,

a steam chamber, a series of steam pockets communicating with said steam chamben casing, a steam chamber, a series of steam pockets communicating with said steam 15 chamber but in a different plane, a series of steam nozzles removably held in said casing, said nozzles having shoulders, and means contacting with said shoulders for holding the nozzles from longitudinal move- 20 ment.

Dated this eighth day of November, 1912.

FRANS H. C. COPPUS. `l/Vitnesses:

PENELorE COMBERBACH, NELLIE WHALEN. 

